The construction projects HSE performance evaluatio n considering the effect of external factors using Ch oquet integral, case study (an Iranian power plant construction com pany)

Nowadays, industrialization exposes the human and e nvironment resources to serious dangers. The importance of these resources caused the HSE (health, safety and environment) to have a significant contribution in industries’ evaluation, especially in construction industry. While evaluati ng the project’s success from an HSE point of view, it is not enough to rely solely on the outputs without considering the impact of external factors affectin g them. On the other hand, the variety of factors affecting HSE and their differen t kinds of interactions, forces us to use another aggregation operators rather than li near ones. Choquet integral (CI) is a well known powerful aggregation operator to be used in such cases. There are different methods to define the coefficients of CI. One of the most recent and prominent methods is “the most representative capac ity definition method”. This paper proposes a modification to this method by imp roving its entropy and consequently the reliability in, as named, non refe rence projects evaluation. The modified algorithm is used in evaluating the impact of external factors on HSE performance of power plant construction projects. T he results show the prominence of modified algorithm’s entropy compared to the original algorithm. Ultimately the external factors integrated score, w hich resembles the suitability of project’s environment, is compared with the score d efined considering output results. According to results, in some projects the re is a deep gap between score of HSE output result and aggregated score of external factors. The gap of two scores potentially figures the internal organizational fac tors performance.